Spring suspension



' v March 16, 1937. v. w. KLIESRATH 2,073,639

SPRING SUSPENSION Filed Jan. 10, 1934 VIIIIIIIl/IIII ekww I INVENTOR.

ATTORNEY.

10 760502" )[Hiesrdih- Patented Mar. 16 1937 UNITED. STATES PATENT; OFF-ICE 2.013.639 smmzq susrnnsrou Victor W. Kliesrath, South Bend, Ind., assignor to The Steel Wheel Corporation, Chicago, -III., a

corporation of New York n Application January 10, 1934, Serial No. 705,989

Claims.

pivoted 01 otherwise connected to the wheel car-- rier, and which projects from the open end of a tubular arm having an. annular rubber block er 15 other resilient means arranged at its open end and embracing the spring member. Preferablythe other end of the arm is reduced in size to engage and closely embrace and be secured to the end of the spring member, and if desired it I may then be flared or otherwise formed to hold a rubber bumper block or the like in alinement with the end of the spring member.

The reduced end of the tubular arm, with the end of the spring member secured therein, is.

5 preferably seated in resilient means shown as a rubberblock seated in a socket on a spring bracket or other support. I prefer to .make thd top and bottom portions 'of the rubber block rela- .tively resilient, and. to make the side portions much harder so that they will resist side sway and otherforces acting in directions other than vertical.

The above and other objects and features of the invention, including various novel combinations 5 of parts and desirable particular constructions, "will be apparent from the following descriptionof the illustrative embodiment shown'in the accompanylng drawing,- in which:

Figure l is a plan view of the spring suspension of one'rear wheel and associated parts, with the wheel removed; I

Figure 2 is a section vertically there-through, with the wheel in place but broken away to show its mounting; r '46, 1 Figure '3 is a longitudinal vertical section thereouch: on the line 3--3 of Figure 1; and

-. gure 4 is a detail section corresponding to or Figure 3' but on a somewhat larger scale andshowing a different arrangement.

In the arrangement illustrated, one of the'side chassis members isshown at In and two parallel tubular transverse reinforcing members are shown at l! and I4. One ofthe rear wheels I6 is journaled in any desired manner on a spindle I8 carried by a knuckle (20, The lower end ofthe rubber thanblock 38, s

sleeve 40 and embracingthe spring 42.

(crest-19) knuckle 20- is pivoted to the outer end of a. Y- shaped axle section or arm 22, of tubular forma-. tion made by welding together face to face two channel-section stampings.

. The inner ends of the two arms,.into which 5 'the axle section 22 branchesout, are received in sleeves or blocks 24 of rubber or. the like resilient material. These blocks are held in seats or sockets in a bracket 26 bridging across and'engaging the lower faces of the transverse reinforcing members 0 I2 and 14, by means such as a clamp member 28 engaging caps 30 at its ends. The caps 30" and. the seats in bracket 26 form sockets holding and supporting the rubber blocks 24.

Member 28 is shown as a resilientsteel stamp- 15 lng, tensioned upwardly by means such as a pair of U-bolts 32. These bolts encircle and urge resiliently downward a cap 34, which cooperates with a seat in an upper bracket 38 engaging-the tops oi members l2-and l4 to form a'socket for go a third block 38 of rubber or the like.

The resilient block 38 embraces the reduced end. of a novel tubular sleeve 40 which has mounted therein a leaf spring or the equivalent 42 pivoted at its outer end to the upper-end of the knuckle g5 20. Within the block 38, the sleeve 40 closely embraces, and may be riveted or otherwise secured to, the base of the spring 42'. The end of the Y sleeve 40 maybe formedas a socket for a small auxiliary block 44 of rubber yieldingly resisting so lengthwise movement of the sleeve to the left. Beyond the block 38, the sleeve 40 is enlarged so that it does not directly restrict the deflections of spring 42. at the end of the sleeve 46, how-,- ever, is arranged arub r bushing 46, of softer ted in the end of the The sideframe membermlllmis shown formed with an opening for the passage of the sleeve 40, and within which, is arranged an annular rubber 40 bumper block 48,01! rubber preferably somewhat harder than block 36. n

' In order to reduce side sway, asshown in Figure 4 instead of making the above-described blocks of the same rubber throughout, the sides 45 or vertical portions 5llmay be made of much harder and denser material than the top and bottom portions 52, although the whole may still be cemented or otherwise formed into a one-piece block. I v r v While one illustrative embodiment has been described in detail, it is not my intention to limit the'scope of the invention to that particular embodiment, or otherwise than bytheterms of the appended claims. Generally similar spring suspensions, but without the tube 40 or its equivalent, are described and claimed in my prior applications Nos. 651,821, filed January 14, 1933, 651,822, filed January 14, 1933, 679,473, filed July 8, 1933, 697,280 filed November 9, 1933, and 702,140 filed December 13, 1933. It' is not my intention to claim herein any 01' the subject-matter of said prior applications.

I claim: 5 1. A vehicle sprin allel pivoted wheel- 01' which includes 9. ed at one end an therein and secured to said end and having yielding means spacing it iromthe-mouth 01 said tubular arm and which projects from said arm to form a part of the wheel-carrying devices. 2. A vehicle spring suspension comprising parallel pivoted wheel-carrying devices, at least one of which includes mounted atone end a ranged therein and secured to said end and having an annular resilient blockembracing the spring member and seated in the open other end of the tubular arm and spacing said member from the mouth of the tubular arm, said spring member projecting from said arm to form a part 01' the wheel-carrying devices. v

3. A vehicle spring suspension -comprising a 30 tubular arm yieldingly mounted at oneend and a spring member arranged therein and secured to said end and having yielding means spacing it from the mouth oi said tubular arm and which projects from said arm,- and wheel-carrying 35 means secured to said member.

4. A vehicle spring. suspension comprising a tubular arm yieldingly mounted at one end and a spring member arranged thereinand secured to said end and having 0 ing the spring member g suspension comprising parcarrying devices, at least one tubular arm yieldingly mountand'seated in the. open other end 01 the tubular arm and spacing said member from the mouth of the tubular arm, said spring member projecting from said am, and wheel-carrying-means secured to said member.

5. A spring suspension device comprising a spring leaf member, a tubular arm within which said member is-arranged at one end and there closely; embraces and is secured to one end of said member andvwhich surrounds the spring member in spaced relation Ior theremainder of its length with said meme ber projecting from its open other end, resilient means carried by the arm atsaid open end and engaging the spring member, and a resilient seat 55 for the reduced end 01 said arm.

6. A spring suspensiqn device comprising a spring leaf member, a tubular. arm within which said member is arranged and,which is reduced at one end and there closely embraces and is 60 secured to one e her projecting fromits open other end, a rubber block carried by the arm at said open end and Q65 embracing the spring member, and a resilient seat for the reduced end 01' said arm.

O 7. A spring suspension device comprising a spring leai' member, a tubular arm within which said member is arranged and which is reduced 70 stone end and there closely embraces and is secured to one end of s surrounds the spring member inspaced relation tor the remainder of its length with said member projecting from its open other end, a ru ber d -a spring member arrangeda tubular; arm yieldingly nd a spring member ara resilient block 'embracand which is reduced 1 nd or said, member' and which aid member and whichaovaeaa block carried by the arm at said open end and embracing the spring member, and a seat for one end of the device including a rubber block embracing the reduced end 01' said arm.

8. A spring suspension device comprising a spring lea! membena tubular arm within which said member is, arranged and which is reduced at one end and there closely embraces and is se-- cured to one end 01' said member and which sun rounds the spring member in spaced relation for the remainder 01' its length with said member projecting from its open other end, and resilient means carried by the arm at said open end and I engaging the spring member. 1

9 .=A spring suspension device comprising a spring leaf member, a tubular arm within which said member'is arranged andwhich is reduced at one end and there closely embraces and is secured to one end .of said member and which surrounds the spring member in spaced relation for the remainder of its length with said member projecting from its open other end, and a rubber block carried by the arm atsaid open' end and embracing the spring 'membeif.

10. A spring suspension device comprising aspring leaf member, said member is arranged and which is reduced at one end and there closely embraces and issecured to one end oi said member and which sur rounds the spring membeFin spaced relation for the remainderof its length with said member projecting from its open other end, and resilient means carried by the arm at said open end and engaging the spring member,- said,reduced end of the arm being provided with a resilient bumper blockin line with the end or the spring member.

11.. A spring suspension device comprising a spring lea! member, atubular arm within which said member is arranged and which is reduced at one end-and there closely embraces and is secured to one end of said member and which surrounds the spring member in spaced relation for the remainder of its length-with said member projecting from its ,open other and resilient means carried by the-arm at said open'end and. engaging the spring member, said reduced end or the arm being flared to form aseat holding a resilienhhumper block in line'with-the end oi.

the spring member. r 12. A spring suspension devicejiaving its end a resiliently moun .re'sflient rubberat theto'pand' bottpm of'said device and havingmiich harder 'rubber at the sides of said device. f

13. A spring-encircling block: of rubber-having relatively resilient top and bottom portions and, much harder side portions .adalpted to'encircle .a

. leaf spring to support thesame'aa'ainst both vertical and horizontal movements. x I H 14.A spring'suspension arm of tubular i'orm having one end mountedon a frame and having said end reduced-"to'embrace a member arranged within said am and having resilient memberembracing means in its otherend.

- 15?,In a sprin suspension, a short flexible leat spring yieldingly mounted on a name member at one end, mounting means for a wheel on the other end, resilient means said 'leaf spring near said other end whereby it is supported without eliminating its initial softness, and second resilient means limiting the ultimate movements of said spring about said first named yielding mounting.

VIC'I'OR W.

a tubular arm within which 

